Find Antonyms
deffo Antonyms
Opposite of deffo
Because the opposite of deffo shifts with each meaning, the antonyms and opposite words below are separated across 2 exact definitions and ranked by contrast strength.
• adverb (Context 1)
Without any doubt; definitely or certainly.
Usage Example
"We are doubtfully going to the concert this weekend if we can get tickets."
Strong
doubtfully
unlikely
• interjection (Context 2)
Used as an emphatic affirmative response to express strong agreement or certainty.
Usage Example
""Are you coming to the party tonight?" "no way!""
Strongest
no way
never
Similar words to deffo
Words similar to deffo shift depending on context. Common synonyms include:
definitely
absolutely
certainly
for sure
totally
undoubtedly
Cite this Entry
Wordmom. (2026). Antonyms for Deffo. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/antonyms/deffo